package collection;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

public class SortString {
    public static void main(String[] args) {
        List<String> list = new ArrayList<>();
        list.add("王克京");
        list.add("传奇老师很幽默");
        list.add("伟超老师");
        System.out.println("list原始数据："+list);//list原始数据：[王克京, 传奇老师很幽默, 伟超老师]

        Collections.sort(list, new Comparator<String>() {
            @Override
            public int compare(String o1, String o2) {
                //return o1.length()-o2.length();//升序：list排序后数据：[王克京, 伟超老师, 传奇老师很幽默]
                return o2.length()-o1.length();//降序：list排序后数据：[传奇老师很幽默, 伟超老师, 王克京]
                //return 0;
            }
        });
        System.out.println("list排序后数据："+list);
        /*
        List<String> list = new ArrayList<>();
        list.add("jack");
        list.add("rose");
        list.add("tom");
        list.add("jerry");
        list.add("black");
        list.add("Kobe");
        System.out.println("list原始数据："+list);//list原始数据：[jack, rose, tom, jerry, black, Kobe]

        Collections.sort(list);//升序
        System.out.println("list排序后数据："+list);//list排序后数据：[Kobe, black, jack, jerry, rose, tom]
         */
    }
}
